Magnetic Circuit When both the inductance and resistance of a coil are doubled the value of Time constant remains unchanged Time constant is halved Final steady current is doubled Initial rate of rise of current is doubled Time constant remains unchanged Time constant is halved Final steady current is doubled Initial rate of rise of current is doubled ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hard steel is suitable for making permanent magnets because It has good residual magnetism Its hysteresis loop has large area Its mechanical strength is high Its mechanical strength is low It has good residual magnetism Its hysteresis loop has large area Its mechanical strength is high Its mechanical strength is low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Silicon steel is used in electrical machines because it has Low retentivity High coercivity Low coercivity Low hysteresis loss Low retentivity High coercivity Low coercivity Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Laminated cores, in electrical machines, are used to reduce Hysteresis loss Copper loss Eddy current loss All of the listed here Hysteresis loss Copper loss Eddy current loss All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The unit of reluctance is Meter/Henry 1/Henry Henry Henry/meter Meter/Henry 1/Henry Henry Henry/meter ANSWER DOWNLOAD EXAMIANS APP
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